Answer:
Mac Address
Explanation:
The MAC address or Media Access Control is a unique identifier that each manufacturer assigns to their devices that can connect to the network. They consist of 48 bits in hexadecimal form, grouped into 12 pairs of characters and each character is formed by four binary numbers, generally separated by a colon. MAC addresses are used in the data link layer of the OSI model, specifically in the lower Medium Access Control layer. An example of a MAC address could be:
10: 68: c5: 5e: 27: 3f.
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Launch is not a characteristic of malware.
Answer:
Please check attachment.
Explanation:
Please check attachment. Book can be borrowed or not borrowed if not available. If not available book, request is registered and book is purchased. If book is bought then book can be borrowed. If request is cancelled then no problem or else book is assigned to the seeker(also he/she is informed) on availability. If book is available and assigned, then either book is returned within the deadline or returned after with fine or order is cancelled as its not needed anymore.